Printing-press.



H. FANMQNER.

PRINTING PRESS. APPLICATION' mml :une 12. 19H

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H. FA'NKBONER. PRINTING PRESS.- MPucAnoN mib lum-z lz, um.

Ptnted Feb. 26, 1918.

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HARLAND FAINKBONER, OF CHICAGO, ILLINOS, ASSGNOR TO THE GOSS PRINTNG PRESS-COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF IICJIN'OIlS` :PRINTING-PRESS.

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Spccicaton of Letters Patent. patentiert livel), 26, 191%..

Application rled .Tune 12, 1917; Serial No. 174,374.

b all wiwi/n t may Concern.'

Be 1t known that 1, HARLAND FANKBONER, a citizen of the United States, and a resident of Chicago, in the county of Cook and State Y of illinois, have invented certain new and useful Improvements in Printing-Presses, of which the following is a speciiication, reterence being had to the accompanying drawings.

My "invention relates to printing presses comprising` form cylinders equipped with clamping devices movable for securing the terms on the cylinder. 1t is one ot the prin cipal objects of my invention to provide a new and improved form and arrangement of parts by reason ot' which the press is rendered incapable of being started normally into operation while a printing plate is in position upon the cylinder and not locked up normally into position thereon but which will at the same time permit the press to be started and normally operated whether or not the plateclamping mechanism is in locked up condition when there is no printing plate in position on the cylinder. 1t is another object of my invention to provide anV arrangement of parts Vof this improved type by reason of which the presence of a clamp-operating tool upon the cylinder will prevent the normal starting of the press. It is still another object of my invention to improve mechanisms o this type in sundry details hereinafter pointed out. The preferred means by which I have accomplished my several objects are illustrated in the accompanying drawings and are hereinafter specitically described. That which I believe to be new` and desire to cover by this application is set forth in the claims.

1n the drawings:

Figure 1 is a side view, partially in vertical section, showing the preferred embodiment of my invention in a cylinder of a printing press.

Fig. 2 is a similar view, but showing the parts in a changed position.

Fig. 3 is a top or plan view showing the parts in the position illustrated in Fig. 2.

Fin'. l is a vertical cross section taken subv stantially on line 4--4 of Fig. 3.`

Fig. 5 is an enlarged detail, being substantially a section taken on line 5-5 in Fig. 2. y y

Referring to the several 'figures ofthe locked in position and held against move-V ment longitudinally of the cylinder by means ot an eccentric member 15 revolubly mounted in an. enlarged central portion 16 of such head. The eccentric 15 is adapted to be turned by means of a suitable tool inserted in an angular socket 17 in its outer end portion, suitable means of any appropriate type being provided for holding the member 15 against rotatino` except when the tool is in position in the socket, all as is well understood in the art.,

Each of the heads 13-14 is provided with a plurality oit longitudinally-extending screws 18 revolubly mounted therein, such screws in turn being provided with plateclampsl 19 of any suitable type adjustably secured in vposition thereon by means oi' screw-threads. As is fully understood in the art,when the heads 13-1-1 are moved toward the right in Fig. 1 by a suitable partial rotation of the eccentric 15, the clamps 19 are moved also toward the right for engaging the edge ot a plate 2O in position on the cylinder. As is fully understood in the art, the plate-clamps 19 are adapted to be adjusted longitudinally of the cylinder to any desired position relative to the heads 13-11 by suitable rotary adjustment `of the screws 1S. In t-he construction shown in Fig. 1, the cylinder 10 is a type adapted to receive four or more printing plates longi tudinally thereof, the inner edge of the plate 2O being in engagement with a plurality of plate-clamps 21 which are slidably mounted in the cylinder, such clamps 21 beingin engagement at their opposite sides with another printing plate 22. l

My improved construction comprises a shield or guard Q3 pivotally mounted upon a yoke 24 carried by the framework 12. This guard 23 comprises a circumferentially-eX- tending portion Q5 adapted to overlie the socket 17 oi' the eccentric memberV 15, as is shown in Fig. 3, and another portion 26 extending transversely across the` outer 1face broken Vfor rendering the press-drivingmeans inoperative. 1n this construction as shown, the switch comprises a block 2S of Vany suitable insulating material secured upon the arm 27, such block 28 being provided with a suitable Contact member 29 normally held by means of a spring 30,A spaced a short distance above the block. The y Y stationary members of the switch in the con# Yso struction shown comprise contact members .31%32 which are connected respectively with Ythe wires 33-34 of a controller circuit of any suitable type by which the operation of the press is regulated, the driving means being rendered inoperative, in the construction shown, by the breaking of the circuit through the switch. The arm 27 is normally held in position by a spring 35 for keeping the circuitclosed through the switch.

My improved construction comprises turther an arm 36 pivotally mounted on each of theheads 13-14 on its outer ,tace near its edge in'such position as to stand `opposite the .portion 26 of the guard or shield 23 when the cylinder 10 is'in normal position'to receive a printing plate to be clamped thereon. In the construction Shown, the portion of the arm 36 which extends outwardly beyond the pivotal axis of the arm is offset rela-tive to the portion extending inwardly, but it will be understood that this otl'setV fea-ture is not necessary to an operative embodiment. The inwardlyextending portion of therarm 36 is provided with an opening 37 through which a longitudinally-extending rod or link `38 passes, said rod or link being provided with a head 39 on its outer en d. The rod or link 38 has pivotally connected to it bellcrank levers L10-l1 pivotally mounted on the cylinderwithin suitable openings 42 therein.

vAs is best shown in Fig. 1 the turned ends of the horizontally-extending arms of said bellcrank levers are adapted to beV engaged Vby printingplates in position upon the cylinder, such as'the plates 20-22 as shown in the drawings,the engagement ofthe printing plates with the levers serving to hold the Y rod or. link 38- against movement toward the left in Fig. 1 beyond the position shown therein.`

' Asiwillfbe readilyappreciated upon an examination of theseveral figures,r whenever a toolis in` position in the socket 17 of the eccentric member 15, with the cylinder 10 in normal position to, receive, a printing plate, such, vtool by its .engagement with the, Vportion 2.5. erf.the 'guard Qi? shield 23 willy serve to.l

Y is standing vposition upon the cylinder, the guard or shield 23 is adapted to stand in normal position as shown in Fig. 1 whether the head 13-14 is in plate-locking position or out of plate-locking position. In that case, with the head 13 in the position shown in Fig. 2, and with the plates 20 and 22 removed from the cylinder 10, the spring 35 will hold the shield or guard 23 in normal position as shown in Fig. 1, the rod or link 38 being adapted to move toward the left in Fig. 2, by reason of the absence of the printing olates, so as to permit the arm 3G to swing in clockwise direction from the position shown in Fig. 2, it being understood that the spring is of suiiicient strength to insure the switch being held closed when no printing plate is in position upon the cylinder. On the other hand, when there is no tool in position in the socket 17 of the eccentric but there is a plate in position upon the cylinder 10`r the guard or shield 23 will be iu normal position for permitting the operation ot the press if the head 13-14 is in plate-locking position and will be out of normal position serving to prevent the operation of the press if the head 13-141 is out of plate-locking position. rlhis result is attained by virtue ofthe iact that the head 39 of the rod or link 38 is located in such position upon such rod or lilik that, when the head 13-1l with the arm 3G thereon and the plate clamps carried thereby at the limit of its movement toward the left in Figs. 1 and 2 while the rod 3S is standing at the limit of its necessary movement toward the right in said ligures by reason of the presence ot' a printing plate upon the cylinder, the head 3.9 engages the inwardly-extending portion ot said arm so as to hold the arm and the guard or shield 23 turned in counterclockwise direction in Fig. against the action of the spring 35. serving thus to hold the switch open for preventing the operation of the press.

So far as I am aware, l an] the first in the art to provide a form and arrangement of parts by reason of which aI printing press is rendered incapable ot being operated normally when a printing plate is in position on theY plate cylinder' of the press with the platelocking means in inoperative position while at the same time permitting the normal operation of thel press when. no plate is in position on the cylinder regardless of whether or not the plate-clamping means is locked up, and by Aclaims are to be construed acthat part of the press not to be provided with printing plates. I ain thus enabled to provide proper safety devices 'for the part of the press in use Without in any Way increasing the labor of the pressman or the responsibility of the pressman in relation to the part ot the press not in use.

I have shown in the drawings only a traginentary` portion oi' the means for driving the press,l namely, the small portion oi the controller circuit which can be thrown into and out ot operation by the manipulationot the switch as above described,-but it will be understood that this driving means may be a ot any approved type and it is therefore believed to be unnecessary to show in detail any complete driving system.

`What I claim as my invention and desire to secure by Letters Patent is,-

l. In a, printing press, the Combination of a plate cylinder, clamping means movably mount-ed on said cylinder Ator locking a printing plate in position thereon, and means held in position by a printing plate on said cylinder `tor preventing the normal operation et the press vvliile the plate-clamping means is out of plate-locking position.

2. -In a printing press, the combination of a plate cylinder, clamping means movably mounted on said cylinder' for locking a printing plate in position. thereon, means held in position by a printing plate on said cylinder for preventing the normal operation of the press While the plate-clamping means is out of plate locking position, and other means cooperating therewith lor preventing the normal operation ot the press While a clamp-operating tool is in position on the cylinder.

3. In a printing press, the combination ot a plate cylinder, clamping means adjustably mounted on said cylinder for locking a printing plate in position thereon, means adapted to be moved into position to prevent normal driving of the press, and means held in po'- sition by a printing plate on the cylinder adapted when the plate-clamping means is out of operative plate-locking position to engage said movable means for holding it in position tor preventing operation of the press.

el. In a printing press, the combination ot a plate cylinder, clamping means slidably mounted on said cylinder for locking a printing plate in position thereon, means adapted to be moved into position to prevent normal driving of the press, and means adapted when no plate is in position on lthe cylinder to stand out of engagement with said movable means so as to permit normal operation of Vthe press but adapted when the plateclamping means is out ot operative platelocking posit-ion to be held by a printing plate upon the cylinder in position to engage said movable means for holding the saine in edective position tor preventing operation of the press.

5. In a printing press, the combination of a plate cylinder, clamping means movably mounted on said cylinder for locking a printing plate in position thereon, means tor driving the press, and means held in ettective position by a printing plate upon said cylinder for throwing said driving means out of operation.

6. In a printing press, the combination of a plate cylinder, clamping means movably mounted on said cylinder for locking a printing plate in position thereon, means for driving the printing press, and means adapted to have no etle'ct upon said driving means when no plate is in position upon said cylinder but adapted when a plate is in position upon said cylinder to prevent operation of the press bysaid driving means except when the plate-clamping means is in operative plate-clamping position.

7. In a printing press, the combination of a plate cylinder, clamping means movably mounted on said cylinder torloclring a printing plate in position thereon, electrically operated means for driving said press,

comprising a switch by the operation of which said driving means may be thrown out ot operation, and means held in effective Vposition by a printing plate upon said cylinder for effecting an operation ot said switch.

8. In a printing press, the combination of a plate cylinder, clamping means movably mounted on said cylinder for locking a printing plate in position thereon, and means movably mounted on said cylinder and adapted to move freely out of operative position When there is no plate upon said cylinder but adapted to be held in operative position by a plate on the cylinder for preventing the normal operation ot thepress vvhile the plate-clamping means is out of plate-locking position.

9. In a printing press, the combination ot a plate cylinder, clamping means movably mounted on said cylinder for locking a plurality of printing plates in position thereon, and devices movably mounted on said cylinder opposite the several positions tor plates on said cylinder adapted to move freely out of operative position When there is no plate on the cylinder but adapted to be held in operative position by a plate thereon for preventing the normal operation of the press While the plate-clamping means 'is out of plate-clamping position.

10. In a printing press, the combination of a plate cylinder, clamping means. movably mounted on said cylinder tor loclnng a l printing plate in position thereon, a bellcrank lever pivotally mounted on sa id cylinder adapted to be engaged by a plate in operative position on said cylinder, a rod slidably `mounted on said cylinder and connectedwith said bellcrank lever, an arm pivotally mounted von said cylinder adapted to be engaged by said rod and displaced from normal position thereby when a plate is in position in engagement with said bellcranl; lever and with the plate-clamping means out of operative plate locking position, and means actuated by the displacement of said arm for preventing the normal operation ot the press.

11.111 a printing press, the combination ot a cylinder, a head slidably mounted on said cylinder and movable longitudinally into and out of operative position, clamping means movable longitudinally ot' said cylinder with said head into and out of plateclamping position7 a bellcrank lever pivotally mounted on said cylinder adapted to be engaged by a printing plate in operative position on said cylinder, a rod slidabl f mounted on said` cylinderv and operatively connected With said bellcrank lever, an arm pivotally mounted on said head adapted to be engaged by said rod and displaced thereby from normal position when a plate is in position in engagement with said bellcrank lever and with said head out of operative position on the cylinder, and means actuated by the displacement ot' said arm 'for preventing the normal operation of the press.

l2. In a printing press, the combination ot a plate cylinder, clamping means movably mounted on said cylinder for locking a printing plate in position thereon, means for driving the press, means held in edective position by a printing plate upon said cylinder for throwing said driving means out ot operation, and other means coperating therewith for prevent-ingnormal operation of said driving means while a clamp-operating tool is in position on the cylinder.

13. In a printingpress, the combination of a! plate cylinder, clampingmeans slidably mounted on said cylinder tor locking a printing plate in position thereon, electrically-operated means tor driving said press, comprising a switch by the operation ol which said driving means may be thrown out of operation, means held in effective position by a printing plate upon said cylinder for eliecting an operation ol said switch, and other means cooperating therewith for holding said s iitch open so long as a clampoperating tool is kept in position on said cylinder.

l-IARLAND FANKBONER.

Copies 0f this patent may be obtained for ve cents each, by addressing the Commissioner of Patents.

f Washington, D. C. 

